BLHeli-S FPV ESC 20A Brushless Speed Controller

*EFM8BB21F16G MCU for great powerful performance, 48MHz.
*BLHeli-S open sourse program
*Support DShot150/300/600, OneShot125, Oneshot42, MultiShot modes.
*Ultra-low internal resistance MOS for less heat and super high stability.
*Easy to install with super small size and light weight.
*Hummingbird BLHeli_S ESC designed for competition FPV drones.
*Compatible with various flight controllers and support signal frequency up to 621Hz in regular signal-receiving mode.